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Extraction chromatography of palladium and platinum complexes with nitroso-R-salt
Authors:Flieger A  Przeszlakowski S
Institution:

Department of Inorganic and Analytical Chemistry, Medical School, 20-081 Lublin, Poland

Abstract:The retention of palladium and platinum complexes with nitroso-R-salt on silica gel treated with Aliquat 336 has been investigated. The complexation of platinum with nitroso-R-salt (NRS) requires heating of H2PtCl6 with an excess of NRS at 100°. The affinity of the complexes for an Aliquat 336 stationary phase increases in the following order: PdCl42? ? Pt-NRS < PtCl62? much less-than Pd-NRS. The complexes of palladium and platinum can be separated by column chromatography on silica treated with Aliquat 336 and eluted with 0.25M perchloric acid (Pt) and 1M perchloric acid (Pd).
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